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Yi-Jui I. Chen; Yi-Jhen Wu; Yi-Hsin Chen; Robin Irey – Journal of Psychoeducational Assessment, 2025
A short form of the 60-item computer-based orthographic processing assessment (long-form COPA or COPA-LF) was developed. The COPA-LF consists of five skills, including rapid perception, access, differentiation, correction, and arrangement. Thirty items from the COPA-LF were selected for the short-form COPA (COPA-SF) based on cognitive diagnostic…
Descriptors: Computer Assisted Testing, Test Length, Test Validity, Orthographic Symbols
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Chen, Yi-Jui I.; Chen, Yi-Hsin; Anthony, Jason L.; Erazo, Noé A. – Journal of Psychoeducational Assessment, 2022
The Computer-based Orthographic Processing Assessment (COPA) is a newly developed assessment to measure orthographic processing skills, including rapid perception, access, differentiation, correction, and arrangement. In this study, cognitive diagnostic models were used to test if the dimensionality of the COPA conforms to theoretical expectation,…
Descriptors: Elementary School Students, Grade 2, Computer Assisted Testing, Orthographic Symbols
Khalaf, Shiva; Santi, Kristi L.; Kulesz, Paulina A.; Bunta, Ferenc; Francis, David J. – Grantee Submission, 2019
This study investigated the dimensionality of bilingual phonological awareness (PA) in English and Spanish by replicating a kindergarten model in Grade 1, and presents alternatives to modeling clustered data. English and Spanish tasks were analyzed from previously collected samples totaling 1,586 first grade Spanish-speaking English learners. Four…
Descriptors: Bilingualism, Phonological Awareness, Spanish Speaking, Grade 1
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Orosco, Michael J. – Learning Disability Quarterly, 2014
"English Language Learners" (ELLs) at risk for "math disabilities" (MD) are challenged in solving word problems for numerous reasons such as (a) learning English as a second language, (b) limited experience using math vocabulary, and (c) lack of strategies to improve word-problem-solving skills. As a result of these…
Descriptors: English Language Learners, At Risk Students, Word Problems (Mathematics), Learning Strategies